Molding machine



R. BACHON HOLDING MACHINE May 20, 1930.

Filed nec. 31, 1927 Y s sheets-sheet 1 /N vewrd f May 20, 1930. R. BAcHoN HOLDING MACHINE Filed nec. s1. 1927 '.3 'sheets-sheet 2 zo, 1930. R BACHON 1,159,728

HOLDING' MACHINE Filed Dec. 51; 1927 s sheets-smnet` 3 Patented May 20, 1936 1 `UNITI-:D STA-Tijs PATENT lolvfllfl'*ci;

'DES USINESJDE ROSIERES, y0E BoUEGE-s, FRANCE MoLDING MACHINE 7 Application filed December 3K1, 1927, Serial No. 243,967, and in France January 6, 1927.

The present invention relatesto a molding machine, in which the sand is pressed in the molding frame lby means of pressing cylinders which are actuated by hand or by. a

suitable motor.. f

The said apparatus is` much superior to the known disc ory plate machines from the` fact that it requires much less force, rsince the plate is required to press at the same time 10 upon the whole surface of theframe, `whilst each cylinder presses only upon a width of a few centimeters.

trol can be used for pressing large frames which could not be thus pressed by the known p hand operated machines. y

In` the case of mechanical drive, the machine `may befcontinuously operatedand this afordsa veryy large output. y f The appendeddrawings show by way-of example an embodiment of the invention.-

Fig. 1 is a side view of the machine.- Fig. 2 is anend View and, l y n Fig.. 2a is a fragmentary viewl corresponding to Fig. 2, but showing ka modilication of theinvention.

Fig. 3 a planview; l' v yF ig. 4 shows a plant for the continuous molding of smally frames.

Fig. 5 isa like plant Jfor heavy fram InFigs; 1 to 3, the mainirame consists of two uprights, one situatedon the right hand i side?) and the other situated on thelet hand side 4. 'f f The said uprights support the pressing cylinders as well as the roller device in the horizontal position.

The said roller devicefconsists of a series of small'rollers 5 and of two actuating, Vcounter pressure cylinders orrollers 64-7y which V40 receive the counter'pressure due to thep'ressure of the cylinders 1 and 2. v The pressing drum 1 is controlled either by hand, bythe lever 8, orby gearing 9`actuated by an electric motor,with7the use of a speedreducing device 10; (this device is shown in the dot-and-dash lines in Fig. 2).

The drum 1 imparts its motion to the drum 2 by a chain and chain wheels, and also to the driving roller 6 by the bevel gearing 11 andthe vertical shaft 12.

In this manner hand con-v The roller 6 drives the roller` 7 by means ofv the chain 18 and coacting chain wheelsg y rEhe drum 1 is mounted upontwo. bearings ings are each provided with a cylindrical journal co-operating with one end of the sup-` ports 15 whose other end receives the aXle V14 whose height lcan be adjusted; said bear- .v

of the drum 2, so that this drum is ypivotally i mounted on the axle of the drum land can be vertically adjusted by the Athreaded rods 16.

'middle part -with a gearwheel for actuating -160 The rollers 6 and 7 are provided at the the -mold carrying'disc 18 which carries a` Y rack uponits lower face. y K

The operation is as follows. Y

Thewpiece or pattern l19 is secured Vtothe disc 18. A molding frame 20 is secured by pins to the pattern V19, and it is filled Iwith sand. The height of the said Adrums has been so regulated that the horizontalplaneof the upper edges of said frame shall be tangent lto thelower generatriX of the drumn2,pand that the drum 1 shallbe somewhathigher .than the drum 2. i

Due to the rotation of the drum 1 in the.

direction of the arrow the discf18 will be actuatedl as well as the Vframe filled with sand,y below the drums'l and '2 which eXercisepressure `by their rotation. When the frame arrives at 21 uponthe small'rollers 5,l it is now` to be disengaged from its-contents,.eitherby` hand if'it is light, orby theuse of a suitable ejecting device which is properly placed upon the said rollers if itis heavy.` The pattern 19 is brought into'its loriginal drumsand the direction of motion of the set v of rollers' are invariable, in orderto provide for a constant Yfunctioning. In` this casethe rollers form a closed circuit. Y Y

In the case of molding which is performedA in small frames or in small'V pieces, as shown .in Fig. 4, the set of rollers 22 comprises small rollers, and this device is covered with plates v position the rotation of *the drums in the i opposite direction, andthe operation is again f vEoeEa :BAoHoN, oEBoURGEsERANcE, Assisnoafon ONE-HALE To socIETEA-vANoNYME C y each of which carries aV pattern 19; said pati terns have a continuous 4and slow motion in order to permit .the various voperations refquired in the formation of a mold. l HVFor ay large-sizedrfralme, as shownin Fig. 15, the said roller device consists otra set of Afunmkcildingparts y25Y Ymounted von a Vrotatable plate 26`V which is set in continuousV rotation,

Y usof `that eachfiunmolding par'tgwill proceed 0i'inlfsuccession'below thepressing rollers l" Y The said rotary machine is p'articularlyvn I A ladvantageous for the molding of srnallandV medl'lIH-Szed pieces'in flat frames. l

The Vpieces Vhaving a-certain height may alsof be 4molded by the 'use'of two cylinders Y or two vseparate sets of c'ylinders',adaptedfor *pressure Y j Y Y Y iff"Thejiirstjcylinder' (or set) will exercise Y "320 pressure upon a mold or -form suitable for the pieceand placed upon the traine in order to obtain-thev 'irst settling of thesand. .Be-

'f 1 `tween the two sets, lthis form will be removed andthe illing with sand-will be completed,

'25 'thesandvbeing 4pressed Vby the lsecond set; y

f The number of drums in use may obviously f bevvarie'dfand vevena single drum mightbe used. Alsoonefmay vary the construction of the machine frame, of the roller device and v'30 Gif the driving and pressing means,without departing fromA theprincipleof the inven- -tioni., -v

" Having thus Ydescribed my apparatuswhat l I claim asvr new therein, and my own inven- `'sation-isz""zgv p er l' e x Y. lygIn a molding imachine, ,thecombination of a frame, a series. of horizontal rollers on i :this 'frime' forming o .roller path, a molding:

frame .movableon the said rollers, afiirst osed, on the frame'ata lower ".o'fra frame,faf series Vdfi;horizontal rollers Von l"55515; this frame," forming ajrolling path,- a mold- Aing ramermovable on these rollers, a first pressing cylinder abovethesaid Ifnolding 'Voframe, means 'for adjusting theposition, in A, height, ofthi's cylinder,asecond pressing cyl A k60` Yinder above, the said, molding-frame, ar'-, Y, yranged at a lower level than the first pressing rst one, meansv for adjusting ,v

fiXed my signature. i,

inders, at the `level ofthe said rolling and means for producing the rotation of the said counter-pressure rollers andv the dis- Y placement of the said molding frames Y e.' in a molding mobilier-,1ro o'omioinotionp,mV` Y Y' of aframe, a-,seri'esof horizontal rollerson j Y j thisframe,iorming a'rolling' path,"'amol'dingr t n frame, movable on Ytliesefrolle'rs, aV first pressing' cylinder above y the' said. molding rframe Y means for adjusting 'the po sitio`n,'ji nheight,`

abovethe said molding Jframe, and arranged counter-pressure rollers vmounted on fthe ata lower level than the first pressing cylinf i i der, means for adjusting-fthe'position, in

, height, ofthis second pressing cylinderttwo k30 l :framevertically-toV thesaid' pressingcylinders. at the level of thesaidrrollingpath, a rack onl-the" imd'ersideof the said molding frame, Va 'toothed' crown on the' said counterpressure rollers, adapted to, gear withpthe said rack, means for transmitting'the move-1 mentbetween the first counter-pressure roller Y and the-Erst pressing cylinder, and means for transmitting the movement between the first pressing cylinder and the second press-f ing cylinder. Y Y i Y, R4; n aV- molding machine, the combinationl of a trame, a series of horizontalrollers on :this frame, formingla rolling path, amold"' ging frame movable ony theserollers,za lfirst Y pressing *cylinderabove Vthe saidv moldingrame,rmeans for adjusting'the position, in" height, oi this "cylinder, 'a-'second pressing arrangedat a lower. level than the firstv pressT ing cylinder, vmeans for adjusting the posicylinder above the said molding frame7 aind--- tion, ijn height, of thisV second pressing cyl- 4 inder', two counter-pressure rollers v:mounted on'the frame, vertically tothe said pressing cylinders atthevlevel of thesaidlrolling'path, Y

j means for producing-Lathe rotation of the said cOllnter-pressure rollers L 'and Y. the displacement oi the saidmolding viframe, means for v f "transmitting the'finoveme'ntY between .the/3 first counter-pressure roller and "the r first pressing'cylinder, 'adapted toi-allow the ad i Y. J justment 1in height of the saidr'pressing Hcylinder, -a klink pivotally connectedy to lthe axis at. lits free end lthe second pressing cylinder,

ofthis second Vpressing cylinder',"sprocket driving` chain passing `oivfe'rfthe Ysaid sprocket-"" wheels.,V v

.of .the firstfpressing cylinder and carrying-115 Vmeans for adjnstingitheposition', hei-ight,`

Vwheels on both pressingfcylinders,.antlfaV In'Y testimony whereof fhavehereunto 5 cylinder,"means for adjusting the positionfflvv in height, of thisf'secondpressing cylinder,` y i i' and two counterrpressure rollers mounted on Y Y i 65fthefame vertically to the saidpressing cyl-V Y 75 'Y of this 'cyl1nder,a second rpressing. cylinder.- 

